老鼠是山神的宠物,属于神灵中的小字辈,它很向往动物世界,于是它向山神要求下凡到动物世界,当一名普通的动物。待它在动物界体验够了,再回到山神身边。山神说:“在动物世界中,大象是最强大的,你下凡后,必须战胜大象,你才有资格回到我身边,否则,你就永远留在动物世界吧。” Mouse is a mountain god’s pet, belonging to the gods of the young generation, it is longing for the animal world, so it demanded from the mountain god to the animal world, when an ordinary animal. When it is enough experience in the animal world, and then returned to the side of the mountain god. The mountain god said: “In the animal world, the elephant is the most powerful. After you descend from the earth, you must overcome the elephant and you are eligible to return to me. Otherwise, you will remain in the animal world forever.”